72.27% is the change from 476 to 820
Calculation steps:
[( 820 - 476 ) ÷ 476] x 100 = 72.27%
Formula
Percentage change = [(820 - 476) / 476] x 100
Subtract the new number by the original number
820 - 476 = 344
344 ÷ 476 = 0.7226890756302521
0.7226890756302521 x 100 = 72.27%